Acetylene-generator.



APatented Dec. '16, 1913.

2 smug-SHEET 1.'

A. E. JENKINS.-

J ACETYLENE GENERATOR. APPLICATION FILED APE. 1e, 1912.

l 'n und? llllllll WTNESSES A. E. JENKINS. v ACE TYLBNB GENERATOR. APBLIUA'TIQN FILED APR. 1e, 1912. t

Patented Dec. 16, 1913.

2 SHEETS-SHEET Z.-

@ffff- ALEXANDER F, JENKINS, or fean'riaonii, athrtr'naith, 'ilssrenonjro THE ALEXANDER MILBURN coivrrANY, or BALTIMORE, misstaan, consentement or Maarn/ann.

remittente-humillante.

LUSLUS.

To o?? wimmz' may concern: y

Be it known that l, ALEXANDER il". JEN- iuifxs, a subject of the King of Great Britain, residing, at Baltimore city, State ot Maryland, have invented certain new and useful Improvements in cetylene-Generators, of which the following is a specification.

This invention relates to acetylene generators and has reference more particularly to venting means for taking care of the gas that arises during the period of after-generation.

The invention is particularly an improve# ment adapted for use in connection with thaty type otgenerator shown in United States Letters Patent No. 956,358, granted to me .\pril QG, 1910, and the purpose of the improvement is to adapt. such a generator for use in indoor installations where the gas escapingl during the period of after-generation would be dangerous on account of possibilit)v ot' explosion and on account of its being inimical to life. l'Ul/'lith the type ot' generator disclosed in the said patent, gas is liable to generate for a short interval after the burner valve is closed and the gas rises freely through thc water and escapes to the atmosphere. As the type ot generator referred to is intended for out-ofdoor use, this escape ot is not a particular disadvantage, but il would be where the generator is used inside a building. By means of the improvements hcreinafl er set forth. the gas that escapes duringafter-geileration is allowed to blow ell' i nto a chamber which connectsv with a pipe that leads to a point outside the building' where it can escape freely into the atmosphere without being` dangerous.

For a more detailed understanding of the invention as regards its construction, operation and objects, reference is to be had to the 'Following` description, taken in connection with the accompanying drawings and to the claims' appended hereto,

ln the accompanying drawings, which illustrate certain embodiments of the invention, llijure l is a side elevation of 'the apparatus with the blow-ofi1 or venting` charnbcr in section. Fig. 2 is a` section on line 2m', Fig'. l. Fig. 3 is a top plan View. Fig. fl is a perspective view of a modified form ot the improvement.

Referringv to the drawings, A designates the tank of the `generator which is provided under its bottom l vwith a washer B through Spcification bf Letters atent.

Application med apra 1e, '1912.

intenten nee. le, rais. serial no. 691,141.

posed of two telescoping sections 3 and e,

the telescoping portions being sealed by the ater in the tank through which they tend. The gas `from the conduit l) 'enters the washer B from which it discharges through an outlet pipe E to the service pipe of the illuminating or other gas-consuming system. The structure thus tar described is the si'ibject-matter oit the patent referred to, with the exception that the outlet pipe E, in the present instance, is located exterior to the tank A. 1

lilith a generator of this character, when not provided with a venting means, the gas during after-generation usually escapes at the lower end of the section 3 of the conduit D between the generator and washer, although it may also escape trom the bottom oi the generator with which there is a large atter-e'eneratiim, but the lower end of the pipe 3 is usually slightly above the bottom of the washer so that this being the point of least resistance, the will esca e therefrom and bubble up through the water. lo prevent, the escape oli the from the lower end et the pipe section 3 or from the bottom of the generator, provision must be made to allow the gas to escape from the 'outlet pipe under a head or pressure less than that existing at the points mentioned in the generating system within the tank, and for this purpose the improvements shown are provided. Preferably, although not necessarily, chamber Vor compartment F is arranged outside the tank tl at communi- Cates therewith through an opening 5 so that in both the chamber and tank the water will be at the same evel. From the upper end et the. outlet pipe E, which terminates above the water level, extends a vent pipe tl that leads downwardly through the c iamber F and terminates at a point .fe the lower end of the pipe 3 within gthe tank.

The pressure of the column of Walle above lll) the lower end of the pipe G is somewhat less than the pressure acting at the lower end of the pipe 3, and hence the gas during after-generation will pass from the generator through the conduit D, washer B, pipe E and vent pipe 6, and rise through the waterin the chamber F. The top of the chamber F is closed by a cap or equivalent cover Y7' which has an opening 8 into which is threaded an escape pipe 9 that leads out of the builc'ling to the atmosphere. The pipe 6 communicates through an opening 10 and coupling 11 with the outlet pipe E.

In this manner, the excess gas is free to pass olf to the atmosphere and will notescape into the building where the generator is installed. v

The gas from the chamber is supplied through a. service pipe 12 to illuminating burners, heaters, 0Xy-acetylene blow pipes and the like, the fiow being controlled by a valve 12, and if desired, a pressure regulator 13 of any approved construction may be employed. In some instances, it may be desirable to provide an automatic blow-01T so that the pressure in the supply system may never exceed a certain amount, and hence a branch pipe 15 leads from the service pipe 12 back into the vent chamber F, through anopening 16 in the cover 7. rlhe outlet end of the branch pipe 15 is provided with a six-inch water seal 17, so that the gas will not escape by means of the vent chamber unless the pressure in the service pipe exceeds that equivalent to a six-inch` column of water. The seal 17 is automati cally filled by Water overflowing into it from the chamber F when the generator `tank is filled to the required level.

In the modiication shown Vin Fig. 4, the vent chamber F is in the form of a pipe instead of a sheet metal structure, as shown in Figs. 1 and 2, and as no blow-olf device for the service pipe is employed, the chamber F need not be made so large. The gas outletvpipe E has a return.branch 6 which extends downwardly into the chamber' F and is equivalent to the pipe '6 in Fig. 1 and operates inthe same manner, the gas escaping from the pipe 6 being let ofi' from the chamber F'through the escape pipe 9a; The outlet pipe F has a valve f by which 'the flow of gas to the consumption system can be cut o or opened. i From'the foregoing description, taken in connection with the accompanying drawings,l the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention appertains, and while l have described the principle of operation of the invention, together with the apparatus which' I now consider to be the best embodiment thereof, I desire to have it understood that the apparatus shown .is merely illustrative,

whereby water in both is at the same level,

an outlet pipe leading from the genera-'ting means, a vent pipe connected with the outlet pipe at a point 'above `the water level andleading therefrom into the chamber and water-sealed therein at a pressure less that the water seal, of'the generating means, and an escape pipe for conveying away from the chamber the vented gas.

2. The combination of a tank, a generator therein, a conduit connected with the generator and composed of two telescoping sections sealed by the water in the tank, an outlet pipe receiving gas from the conduit, a vent pipe connected with the outlet pipe and having a water seal of a less pressure than the water seal of the said conduit, and means for conveying away the gas escaping from the said vent pipe.

3. The combination ofa tank, a generator submerged therein and from which gas during after-generation tends to escape at the bottom of the generator, a chamber communicating with the tank for holding water at the same level, an outlet pipe receivthe bottom of the generator, aconduit connected with the generator andr composed, of two telescoping sections sealed by the water in the tank, an outlet pipe, a vent chamber containing a column of water, a pipe leading from the outlet pipe downwardly into the vent chamber 'and having its lower end terminating in the bottom portion of the said chamber, and means for conveying ,away from the said chamber the vented gas.

5. The combination of atank, a'generator submerged therein, a washer at the bottom of the tank, a conduit leading from the generator to the washer and composed of telescoping sections sealed by the water in the tank, an outlet pipe leading from the washer, a chamber communicating with the tank whereby both will contain water at the same level, a vent pipe leading downwardly into the chamber from the outlet pipe and 130 haring ite ower end terminating at such a I iet pipe into the Said chamber and having its point that he pressure of the Water sealing end Sealed therein` n mire in the outlet pipe he saine less han the presure of the wir g beyond the point of connection therewith ier seling the telescoped sections of the 1 of the rent pipe whereby gas 'can escape said Conduit, and xnea'ns for conveying away he gus vented through the said rent pipe and chamber.

(S. The Combination of n tank, a generating' ineens therein und from which gras tends io escape during the period of after-generation, e chmnber communicating with the l' trink to receive Water therefrom, an outlet l pipe receiving gas from the said generating means, a venti pipe in constant open com munwtion with and ieading from the outi is Closed. :i blow-0H' means connected with the outlet pipe at the discharge side Of'the said valve and leading into the said chain ber` and a waerseal for the blow-off pipe.

In testimony whereof I aiiix my signature in presence of two Witnesses.

ALEXANDER F.' JENKINS. Wvinesses z A. THOMPSON,

, through the rent pipe when the said Valve L 

